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(No Model.) 2 Sheets-Sheet 1. C. F. W. DOEHRING.

PIRE PRooF PARTITION 0R CEILING;

No. 478,318. Y Patented July 5, 1892.

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PIRE PROOF PARTITION 0R CEILING.

No. 478,318. Patented July 5, 1892.

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LA @stamt/r1) @adams/3W lNvEN-VUR WITN E5 E E5 UNITED STATES PATENT OFFICE.

CARL F. W. DOEI-IRING, 0F NEW YORK, N. Y.

FIRE-PROOF PARTITION OR CEILING.

SPECIFICATION forming part of Letters Patent No. 478,318, dated July 5, 1892. Application filed January 16, 1891.A Serial No. 377,972. (No model.)

To all whom it may concern:

Be it known that I, CARL E. W. DOEHRING, of New York city, New York, have invented an Improved Fire-Proof Partition or Ceiling, of which the following is a specification.

This invention relates to a tire-proof partition that is light, durable, and can be readily constructed.

It consists in the various features of improvement more fully pointed out in the claims.

In the accompanying drawings, Figures 1 and 2 are horizontal cross-sections through fire-proof partitions constructed according to my invention.' Fig. 3 is an elevation of the partition, showing it partly completed. Figs. 4, 5, and 6 show three modifications of keys by which the partition is secured to the floor the keys when the partition is drawn at right angles to the floor-beams. Fig. 8 is an end view of Fig. 7.

rl-he letters a represent the uprights of the partition. These uprights I make of bent sheet metal. The angles run from top to bottom, so that each upright constitutes either a closed hollow column with overlapping edges or an open column. In Fig. l the left-hand upright a is open, its ends entering the adjoining wall b, so as to connect the partition with such wall. The second upright is closed and cruciform, the third is closed and of T form, and the fourth upright is open and straddles a joist c of a door-frame. In Fig. 2 the uprights a are V-shaped and open, with respectively no flanges, parallel flanges, and diverging flanges. The sheet metal used should be protected against corrosion by being galvanized or otherwise. It may be bent into the required shapes by an ordinary bendin g-machine directly at the building-site, and

thus all the heavy and expensive Iitted castings heretofore necessary may be dispensed with.

The uprights d are connected by a system of Wires rl. These wires are either drawn centrally through the uprights, which are for that purpose perforated, as in Figs. 1 and 2, or they are drawn through perforations in the flanges of the uprights in zigzag manner, as in Fig.

3. After the wall has been thus far built up it is completed, as usual, by a mortar, cement, or similar filling e.

In order to connect the partition with the girders of the ceiling and iioor, I make use of metal strips f, having a central key or projection f', that enters the partition. When wooden Hoor-beams are used, as in Fig. 4, the strips fare nailed to such beams. With metallic girders, Fig. 5, the strips f are bent around the end plates. In Fig. 6 the strip j" is made of triangular form in cross-section and the projection fris dispensed with.

Figs. 7 and 8 show the strips f arranged at rightangles to the beams A. In this modification the strips f are attached to the gil-ders by burrs or otherwise.

My invention may also be employed for the construction of ceilings.

Vhat I claim isl. The combination of the bent sheet-metal uprights a with connecting-Wires d and mortar filling e, substantially as and for the purpose specied.

2. The combination of bent sheet-metal uprights a with connecting-Wires d, iilling e, and with keys f for connecting the partition to the ceiling and floor, substantiallyk as specied.

CARL F. WV. DOEI-IRING.

Witnesses:

F. v. BRIEsEN, A. JoNGHMANs. 

